package com.override;

class NOTEX {
	public static final int MIDDLE_C = 0, C_SHARP = 1, C_FLAG = 2;
}

class InstrumentX {
	public void play(int NoteX) {
		System.out.println("Instrumentx.PLAY()");
	}
}

class WindX extends InstrumentX {
	public void play(NOTEX n) {
		System.out.println("WindX.paly(NOTEX n");
	}
}

public class WindError {
	public static void calc(){
		int a=6;
		int b=4;
		int d=b<<2;
		System.out.println(d);
		System.out.println(a^b);
		int c=a^b<<2;
		System.out.println(c);
	}

	public static void tune(InstrumentX i) {
		i.play(NOTEX.MIDDLE_C);
		calc();
	}

	public static void main(String[] args) {
		WindX flute = new WindX();
		tune(flute);
	}

}